Re: How long for SNRM to get back to normal?

25dB is a very strange value. It suggests you need to disconnect and reconnect, (preferably switch the router off for a couple of minutes or so), and see what the stats are then. It is unlikely to be above 15dB, so a much higher connection speed should be achieved.

Reductions in 3dB steps from 15dB take 10-14 days to take place via the system, giving up to 750kbps at each step. You may find it better to get an ISP reset (restarting the initial 10 days), if they understand what you are talking about.

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.

Re: How long for SNRM to get back to normal?

Yes, it happened to me. I had such a bad line, that the system locked the line down to a fixed speed sync (up and down). It didn't automatically correct, and I had to contact BT Retail to reset it. Strangely, they were only able to free up the download speed as, apparently, it required BT Wholesale to reset the upload. That was about 15 months ago, so things may have changed.

Of course, the biggest problem is getting past the call centre staff to the technical support staff who could fix it.

(In my case, the problem was made much worse as it was over a Christmas/New Year and required digging up the pavement to renew a Y joint. Back about 1970 when the house was built, the Post Office simply buried the joint in the ground and in 40+ years the waterproofing failed. This meant that there was around 2 weeks for the monitoring software to lock the profile into a place it never came back from).